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The Casio FX-991EX Classwiz scientific calculator has a lot of functions that you will not find in any other scientific calculator. Some of these functions are: 1. QR Code for equation visualization 2. In-built unit conversion feature(eg. inch to cm) 3. 4X faster in comparison to its predecessor 4. 4X Screen resolution in comparison to its predecessor 5. Functions like spreadsheet and Matrix calculations up to 4th dimension 6. It is the most recommended scienitfic calculator by professor Did you
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